Add kp-detect-v17 submission

leaderboard/submissions/kp-detect-v17/README.md

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+# kp-detect-v17 submission
+
+A hybrid statistical + Unicode-aware AI-generated text detector. 30-D
+engineered text features → calibrated gradient-boosted classifier, with a
+Unicode-normalization pre-processing step for adversarially-modified inputs
+(zero-width spaces, mathematical-alphanumeric homoglyphs).
+
+- `metadata.json` — author + release date + contact (template fields)
+- `predictions.json` — one `{id, score}` per RAID test row (score is P(AI))

leaderboard/submissions/kp-detect-v17/metadata.json

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+{
+  "date_released": "2026-05-23",
+  "detector_name": "Kareem Elsamadicy (Independent Researcher)",
+  "contact_info": "kelsamadicy@gmail.com"
+}